Crystal and Molecular Structure of Dichloro(ethylenediamine)gold(III) Nitrate: [Au(NH2CH2CH2NH2)Cl2]NO3

Abstract

The gold(III) atom in [Au(NH2CH2CH2NH2) Cl2]NO3 is chelated by the ethylenediamine (en) ligand and the approximately square planar geometry is completed by two chloride atoms. Weak Au⋯O and Au⋯Cl contacts are noted above and below the square plane leading to a tetragonally distorted octahedron for the gold(III) center. Extensive charge-assisted hydrogen bonding of the type N–H⋯O leads to the formation of a 2-D array and layers are consolidated into a 3-D network via C–H⋯O and C–H⋯Cl contacts. The compound crystallizes in the orthorhombic space group Pbca with a = 10.3380(11) Å, b = 8.2105(7) Å, c = 19.625(2) Å, and Z = 8.

Synthesis, structural characterization, electrochemical behavior and anticancer activity of gold(iii) complexes of meso-1,2-di(1-naphthyl)-1,2-diaminoethane and tetraphenylporphyrin

“…These values are in agreement with the values of other gold(III)-diamine complexes. [19][20][21][22][23][24]46,47 The Au-N bond distances in 24 The Au-Cl bond distances of 2.272(2) and 2.274(2) Å are very close to the reported values of the related structures. 19,20,24,46,47 The complex cation and chloride ions are associated with each other through electrostatic and H-bonding interactions.…”

“…[19][20][21][22][23][24]46,47 The Au-N bond distances in 24 The Au-Cl bond distances of 2.272(2) and 2.274(2) Å are very close to the reported values of the related structures. 19,20,24,46,47 The complex cation and chloride ions are associated with each other through electrostatic and H-bonding interactions. All the chloride ions, both amine groups and water molecules are engaged in hydrogen bonding with each other.…”

Au(III) and Pt(II) Complexes of a Novel and Versatile 1,4-Disubstituted 1,2,3-Triazole-Based Ligand Possessing Diverse Secondary and Tertiary Coordinating Groups

“…There are relatively few examples of [Au­(III)­Cl 2 ] + coordinated by diamine groups in the literature. Three ethane diamine coordinated examples have been reported with chloride and nitrate counterions. − Several cyclohexane diamine chloride complexes are also known. , In these complexes, Au–N distances are 2.02836(8)–​2.05900(11) Å. The structure of 3 (Figure ) features the ligand ptpd with an Au­(III)­Cl 2 + group coordinated by the bidentate diamino group.…”

Bacteriocins From LAB and Other Alternative Approaches for the Control of Clostridium and Clostridiodes Related Gastrointestinal Colitis

“…Apart from bacteriocins, LAB may produce a variety of antimicrobial compounds, including organic acids, diacetyl, carbon dioxide, hydrogen peroxide, and organic antimicrobial compounds with low molecular mass ( Favaro and Todorov, 2017 ). Particular low-molecular metabolites such as D-phenyllactic and 4-hydroxy-phenyllactic acids, 3-hydroxylated fatty acids and cyclic dipeptides show strong antifungal activity and are therefore of special interest for application in food biopreservation ( Valerio et al, 2004 ; Svanström et al, 2013 ; Chen et al, 2016 ; Leyva Salas et al, 2018 ).…”